Recent content by Atlos

Ah, got it! I understand it now, I got x(t)=5+2t and z(t)=2t which were both right.

Woops, I forgot the prime for those. What do you mean what would the value of t be? Like solve for 2/sqrt(t) = 5, 3t^2+1 = 2, and 3t^2-1 = 0 to find a t vector? Otherwise I don't see a value of t that would make the equations go through the point (5,2,0). edit: oh nevermind t would be 1 to...

Homework Statement Homework Equations r = <x,y,z> r' = <x',y',z'> The Attempt at a Solution I started by finding the derivatives of each part of the vector and got: x= 2/sqrt(t) y= 3t^2+1 z= 3t^2-1 Then I plugged the point (5,2,0) into that and got (2/sqrt(5), 13, -1). This should be...

Awesome, thanks a lot.

Uggh, I knew it couldn't be that easy! I drew a wire where there shouldn't have been one. This is the real circuit: http://sogacity.com/images/circuit3.png Anyways, I still have no idea how to approach this problem. Would it be (R1||R4)+(R2||R3) since R1 and R2 seem to be in series and...

Personally I would just read in the input and store it as a string rather than an integer. Although I'm not sure if you specifically have to do it like that for your question. Here's the pseudo-code: - Store input as string - Have another output string variable of just "" - Loop through...

Ah I understand it now, not sure how I missed that. Thanks!

Do you mean like this? http://sogacity.com/images/circuit2.png So would R1 and R2 be in parallel with R3 and R4? Like (R1 + R2)||(R3 + R4)?

Homework Statement I'm just trying to find the equivalent resistance of this: http://sogacity.com/images/circuit.png Homework Equations Resistors in series add and resistors in parallel inversely add. The Attempt at a Solution I'm not even sure how to approach this. I guess I...

I came to find v1f by using the following equation: [(m_1-m_2) / (m_1+m_2) ]v_{1i} + [2m_2 / (m_1+m_2]v_{2i}

Homework Statement A 120 g ball moving to the right at 4.5 m/s catches up and collides with a 420 g ball that is moving to the right at 1.2 m/s. If the collision is perfectly elastic, what is the speed of the 420 g ball after the collision? Homework Equations m_1v_{1i}+}m_2v_{2i} =...